From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx183.postini.com [74.125.245.183]) by kanga.kvack.org (Postfix) with SMTP id 362236B0032 for ; Wed, 5 Jun 2013 15:23:52 -0400 (EDT) Message-ID: <51AF903C.4060801@redhat.com> Date: Wed, 05 Jun 2013 15:23:40 -0400 From: Rik van Riel MIME-Version: 1.0 Subject: Re: [PATCH 1/7] mm: remove ZONE_RECLAIM_LOCKED References: <1370445037-24144-1-git-send-email-aarcange@redhat.com> <1370445037-24144-2-git-send-email-aarcange@redhat.com> In-Reply-To: <1370445037-24144-2-git-send-email-aarcange@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Andrea Arcangeli Cc: linux-mm@kvack.org, Mel Gorman , Hugh Dickins , Richard Davies , Shaohua Li , Rafael Aquini On 06/05/2013 11:10 AM, Andrea Arcangeli wrote: > Zone reclaim locked breaks zone_reclaim_mode=1. If more than one > thread allocates memory at the same time, it forces a premature > allocation into remote NUMA nodes even when there's plenty of clean > cache to reclaim in the local nodes. Since we can get into concurrent reclaim from the direct reclaim path anyway, and seem to handle that correctly, removing this special case from zone reclaim looks fine. > Signed-off-by: Andrea Arcangeli Reviewed-by: Rik van Riel -- All rights reversed -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org